Their child, however, was wanted, the product of love: Mathis and Bosh lived together for two years when he played for the Toronto Raptors, and she says Bosh had her get fertility treatments when getting pregnant proved harder than he thought.

In her first interview since their daughter Trinity was born three years ago, Mathis says she doesn’t understand why Bosh is ignoring her pleas for help after she lost her job last month, placing her on the edge of foreclosure and public assistance.

Worse: She says Bosh has spent upward of $2 million on a coterie of lawyers to keep his child support payment at $2,600 a month — millions that even the Orange County judge handling their case said would be better spent on his daughter.

“Chris really wanted us to have a baby, that why he had me go to a fertility doctor,” Mathis exclusively told Gossip Extra at the downtown Orlando office of her lawyer, Jane E. Carey. “I followed the treatment and we eventually became pregnant. He was very happy when Trinity was born.”

(See the exclusive video below showing Bosh and Mathis learning the results of their pregnancy test)

As Gossip Extra revealed exclusively Saturday, Mathis is the Orlando single mother who applied for tax-funded food stamps because, she says, Bosh’s child support barely pays for her mortgage. The tallhead makes as much as $18 million a year playing for the Heat.

Mathis believed Bosh would marry her when Trinity was born. But she and Bosh broke up when she was six months pregnant, and she eventually moved to Orlando to be with her family.

But Bosh married Adrienne Williams last year, and the couple had their first child last month.

Lawyer Carey says Bosh’s aggressive legal stand started when he moved to Florida in 2010 to join LeBron James and Dwyane Wade on the Heat.

If you believe Bosh, however, he’s not really living in the $12.5 million-mansion he bought in 2010 in Miami Beach but in the 1,800-square-foot house at 904 Manor Drive, De Soto, Texas, according to court records. That house is assessed at $93,000.

“The amount of child support was set by a judge in Dallas, Texas, where Mr. Bosh is from,” Carey said. “Let’s just say they gave him a sweetheart deal because he’s a favorite son over there.

“In Florida, there are guidelines, and those guidelines would probably set Mr. Bosh child support to something around $25,000 to $30,000.”

Now, Carey said, Bosh is fighting her attempts to have him domiciled here.

And in fairness, Matthis says, Bosh does what he is mandated to do when it comes to visitations with Trinity.

“He has his nanny chauffered up in his SUV to pick up Trinity for four-day weekends in Miami,” Matthis says. “I don’t know how much bonding there is when a nanny who doesn’t speak English is involved, but Trinity knows here dad wears the No. 1 jersey.”